EP2579637A1

EP2579637A1 - Method and apparatus for monitoring process of subscribing wap services

Info

Publication number: EP2579637A1
Application number: EP11786021.3A
Authority: EP
Inventors: Shouping Li
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-05-28
Filing date: 2011-05-06
Publication date: 2013-04-10
Anticipated expiration: 2031-05-06
Also published as: EP2579637B1; CN102264073B; EP2579637A4; WO2011147249A1; CN102264073A

Abstract

A method for monitoring a WAP service includes: caching information of a service to be subscribed and information of a corresponding request terminal that are obtained from an egress of an access network gateway; obtaining information of the service to be subscribed and information of the corresponding request terminal from an egress of a WAP gateway which communicates with the access network gateway; judging whether cached information includes the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway; if a judgment result is yes, continuing a WAP service subscribing procedure; and if the judgment result is no, sending alarm information. Embodiments of the present invention also provide an apparatus for monitoring a WAP service subscribing process. Judge whether WAP service subscription is authorized through comparing information obtained by the egress of a WAP gateway with information obtained by the egress of the access network gateway, so that an act of subscribing to a WAP service by implanting an unauthorized program in the WAP gateway is effectively prevented and economic losses of an authorized user or an operator are avoided.

Description

This application claims priority to Chinese Patent Application No. CN 201010193907.6 , filed with the Chinese Patent Office on May 28,2010 and entitled "METHOD AND APPARATUS FOR MONITORING WAP SERVICE SUBSCRIBING PROCESS", which is incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for monitoring a WAP service subscribing process.

BACKGROUND OF THE INVENTION

With rapid development of WAP (Wireless Application Protocol, wireless application protocol) services, attacks aimed at the WAP services become more and more frequent. Implanting an unauthorized program in a WAP system is a common WAP service attack means. This attack manner specifically is that, the unauthorized program is implanted in the WAP system, and the unauthorized program constructs a service subscription request message (the unauthorized service subscription request message carries a mobile phone number of another person) to send to a service processing system, and then performs second confirmation on the subscription message, so as to implement unauthorized service subscription, thereby making profits illegally.
During the implementation process of the present invention, the inventor finds that the prior art at least has the following problems.
The existing WAP service subscribing procedure lacks an effective security protection mechanism. After the unauthorized program is implanted in the WAP system, the system cannot identify an unauthorized message, and therefore the WAP services are under unauthorized subscription or used for free, thereby causing economic losses of an authorized user or an operator.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method and an apparatus for monitoring a WAP service subscribing process so as to effectively improve security of a WAP service subscribing procedure.
A first aspect of present invention provides a method for monitoring a WAP service subscribing process, where the method includes:

caching information of a service to be subscribed and information of a corresponding request terminal that are obtained from an egress of an access network gateway;
obtaining information of a service to be subscribed and information of a corresponding request terminal from an egress of a Wireless Application Protocol WAP gateway which communicates with the access network gateway;
judging whether the cached information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the access network gateway include the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway;
if a judgment result is yes, continuing a WAP service subscribing procedure; and
if the judgment result is no, sending alarm information.

A second aspect of the present invention provides an apparatus for monitoring a WAP service subscribing process, where the apparatus includes:

a first monitoring module, set at an egress of an access network gateway, and configured to obtain information of a service to be subscribed and information of a corresponding request terminal;
a caching module, configured to cache the information obtained by the first monitoring module;
a second monitoring module, set at an egress of a wireless application protocol WAP gateway which communicates with the access network gateway, and configured to obtain information of a service to be subscribed and information of a corresponding request terminal;
a service judging module, configured to judge whether the information cached by the caching module includes the information of the service to be subscribed and the information of the corresponding request terminal that are obtained by the second monitoring module; and
a service processing module, configured to continue a WAP service subscribing procedure when a judgment result of the service judging module is yes, and send alarm information when the judgment result of the service judging module is no.

It can be seen from the technical solutions provided in the foregoing embodiments of the present invention that, in the embodiments of the present invention, through comparing the information obtained from the egress of the WAP gateway with the information obtained from the egress of the access network gateway; to judge whether WAP service subscription is authorized, an act of subscribing to the WAP service by implanting the unauthorized program in the WAP gateway is effectively prevented, thereby avoiding the economic losses of an authorized user or an operator.

BRIEF DESCRIPTION OF THE DRAWING

To illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments are introduced briefly in the following. Apparently, the accompanying drawings in the following description are only some embodiments of the present invention, and persons of ordinary skill in the art can further derive other drawings according to these accompanying drawings without creative efforts.

FIG. 1 is a flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a system according to an embodiment of the present invention;
FIG. 3, including 3A, 3B, and 3C, is a signaling flow chart of a first embodiment of the present invention;
FIG. 4, including 4A, 4B, and 4C, is a signaling flow chart of a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the embodiments to be described are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
In order to improve security of a WAP service subscribing process, an embodiment of the present invention provides a method for monitoring a WAP service subscribing process. The procedure of the method is shown in FIG 1, and the specific implementation manner is as follows:

S101: Cache information of a service to be subscribed and information of a corresponding request terminal that are obtained from an egress of an access network gateway.
S102: Obtain information of a service to be subscribed and information of a corresponding request terminal from an egress of a WAP gateway which communicates with the foregoing access network gateway.
S103: Judge whether the foregoing cached information of the service to be subscribed and information of the corresponding request terminal that are obtained from the egress of the access network gateway include the foregoing information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway.

If a judgment result is yes (that is, the cached information includes the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway), perform S104: continue a WAP service subscribing procedure.
If the judgment result is no (that is, the cached information at least does not include one of the following information: the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway), perform S105: send alarm information.
In the embodiment of the present invention, a direction of the egress of the WAP gateway refers to a direction in which the WAP gateway sends data to a core network/a service network; and a direction of the egress of the access network gateway refers to a direction in which the access network gateway sends data to the WAP gateway.
In the embodiment of the present invention, the access network gateway refers to a gateway which forwards communication data between the request terminal and the WAP gateway.
In the method provided in the embodiment of the present invention, the information obtained from the egress of the WAP gateway and the information obtained from the egress of the access network gateway are compared, for example, if an unauthorized service request is sent by an unauthorized program which is implanted in the WAP gateway, the service request information cannot be found in the cached information which is obtained from the egress of the access network gateway; thereby judging whether WAP service subscription is authorized, and effectively preventing an act of unauthorized subscription to the WAP service.
In the method provided in the embodiment of the present invention, detection points are set respectively at the egress of the WAP gateway and the egress of the access network gateway which communicates with the WAP gateway, and information obtained by the detection points is parsed to implement the monitoring on the WAP service subscribing process. According to a difference in the detection points information, the embodiment of the present invention provides two implementation manners for obtaining information.

Manner 1

The specific implementation manner of the foregoing S 1 02 includes: a detection point which is set at the egress of the WAP gateway obtains a service request message of the request terminal, and parses the service request message to obtain the information of the service to be subscribed and the information of the corresponding request terminal that are in the service request message; the information of the service to be subscribed includes a network address of the service to be subscribed (in the embodiment of the present invention, the address may be an IP address, and may also be a URL (Uniform Resource Location, uniform resource locator) address); the information of the request terminal includes identification information of the foregoing request terminal (in an embodiment of the present invention, the identification information may be a mobile phone number of the request terminal, an IMSI (International Mobile Subscriber Identity, international mobile subscriber identity), or a subscriber pseudo code, and so on). The specific implementation manner of the foregoing S101 includes: a detection point which is set at the egress of the foregoing access network gateway obtains an online request message of the request terminal, parses the online request message to obtain and cache the information of the request terminal, where the information is carried in the online request message; the information of the request terminal includes an IP address of the foregoing request terminal and identification information of the request terminal, and correspondence between the IP address of the request terminal and the identification information of the request terminal is further cached; the detection point which is set at the egress of the foregoing access network gateway also obtains the service request message of the foregoing request terminal, parses the service request message to obtain and cache the information of the service to be subscribed, where the information is carried in the service request message; the information of the service to be subscribed includes the network address of the service to be subscribed, and correspondence between the IP address of the request terminal and the network address of the service to be subscribed is further cached. In the embodiment of the present invention, in order to improve the monitoring efficiency, only a target WAP service that is set may be monitored, and then in S102, specifically, the network address of the service to be subscribed and identification information of the request terminal may be obtained according to preset identification information of the WAP service to be monitored (the identification information may be an IP address of the WAP service, or a URL address of the WAP service, and so on), where the network address of the service to be subscribed is carried in the service request message of a WAP service to be monitored.
In addition, after the judgment, the embodiment of the present invention may further include S106a: the detection point which is set at the egress of the access network gateway obtains an offline request message of the foregoing request terminal, parses the offline request message to obtain the IP address of the request terminal and the identification information of the request terminal that are carried in the offline request message; according to the IP address of the request terminal and the identification information of the request terminal, deletes corresponding IP address of the request terminal and identification information of the request terminal, and the correspondence between the IP address of the request terminal and the identification information of the request terminal, where the corresponding IP address and identification information, and the correspondence are in the cache, and deletes the correspondence between the IP address of the corresponding request terminal and the network of the service to be subscribed, and the network address of the service to be subscribed, where the correspondence and the network address are in the cache. Accordingly, the specific implementation manner of the foregoing monitoring the WAP service subscribing process is as follows:

S1031a: Judge whether the cached information includes the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway.

If a judgment result of S1031a is yes, perform S1032a: judge whether the cached information includes the corresponding IP address and the correspondence between the identification information of the request terminal and the IP address of the request terminal; if the judgment result of S 1031a is no, perform the foregoing S105.
If a judgment result of S 1 032a is yes, perform S1033a: judge whether the cached information includes a corresponding network address and the correspondence between the IP address of the foregoing request terminal and the network address of the service to be subscribed; if the judgment result of S1032a is no, perform the foregoing S105.
If a judgment result of S1033a is yes, perform S1034a: judge whether the foregoing cached network address is the same as the foregoing network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway. If the network addresses are the same, the subscription service is regarded as an authorized service, and the foregoing S104 is performed. Otherwise, the subscription service is an unauthorized service, and the foregoing S105 is performed.

Manner 2

The specific implementation manner of the foregoing S102 includes: a detection point which is set at the egress of the WAP gateway obtains a service request message of the request terminal, and parses the service request message to obtain information of the service to be subscribed and information of the corresponding request terminal that are in the service request message; the information of the service to be subscribed includes a network address of the service to be subscribed, and the information of the request terminal includes identification information of the foregoing request terminal. The specific implementation manner of the foregoing S101 includes: a detection point which is set at the egress of the foregoing access network gateway obtains an online request message of the request terminal, and parses the online request message to obtain and cache information which is of the request terminal and which is carried in the online request message, where the information of the request terminal includes identification information of the foregoing request terminal; the detection point which is set at the egress of the foregoing access network gateway also obtains a service request message of the foregoing request terminal, parses the service request message to obtain and cache information which is of the service to be subscribed and which is carried in the service request message, where the information of the service to be subscribed includes a network address of the service to be subscribed, and caches correspondence between the identification information of the request terminal and the network address of the service to be subscribed. In the embodiment of the present invention, in order to improve the monitoring efficiency, only a target WAP service that is set may be monitored, and then in S102, specifically, the network address of the service to be subscribed and the identification information of the request terminal that are carried in the service request message for a WAP service to be monitored may be obtained according to preset identification information of the WAP service to be monitored. In addition, after the judgment, the embodiment of the present invention further includes S106b: the detection point which is set at the egress of the access network gateway obtains an offline request message of the foregoing request terminal, parses the offline request message to obtain the identification information which is of the request terminal and which is carried in the offline request message; and according to the identification information of the request terminal, deletes the identification information of the corresponding request terminal in the cache, and deletes the correspondence between the identification information of the corresponding request terminal and the network address of the service to be subscribed, and the network address of the service to be subscribed, where the correspondence and the network address are in the cache. Accordingly, the specific implementation manner of the foregoing monitoring the WAP service subscribing process is as follows:

S1031b: Judge whether the cached information includes the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway.

If a judgment result of S1031b is yes, perform S1032b: judge whether the cached information includes the corresponding network address and the correspondence between the identification information of the foregoing request terminal and the network address of the service to be subscribed; if a judgment result of S1032b is no, perform the foregoing S105.
If the judgment result of S1032b is yes, perform S1033b: judge whether the foregoing cached network address is the same as the foregoing network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway. If the addresses are the same, the subscription service is regarded as an authorized service, and the foregoing S104 is performed; otherwise, the subscription service is an unauthorized service, and the foregoing S105 is performed.
The specific implementation manner of the embodiment of the present invention in a practical application process is described in detail in the following.
In a network architecture as shown in FIG. 2, a GGSN (Gateway GPRS Support Node, gateway GPRS support node, GPRS General Packet Radio Service, general packet radio technology) as an access network gateway, is in charge of transmitting a communication between a terminal and a wireless network. The WAP gateway is in charge of transmitting a communication message between the GGSN and a WAP service server. A Portal (a type of webpage application technology) server, an AS (Application Server, application server), and an SP/CP (Service Provider/Content Provider, service provider/content provider) serve to provide network services to the terminal. A first detection point is set at an egress of the GGSN. It should be noted that, although only one GGSN is shown in a schematic diagram of the network architecture in FIG 2, in the practical application process, multiple GGSNs in communication with a same WAP gateway may exist. Accordingly, an egress of each GGSN is set with a first detection point. A second detection point is set at the egress of the WAP gateway. An apparatus for monitoring the WAP service subscribing process is connected to the first detection point and the second detection point to analyze and process monitoring data.

Embodiment 1

Taking a network architecture as shown in FIG. 2 as an example, a WAP service subscribing procedure in which a monitoring method provided in an embodiment of the present invention is applied is shown in FIG. 3, a specific implementation manner is as follows:
S301: A GGSN receives and forwards an online request message (Accounting-Request Start) which is initiated by a request terminal.
S302: Obtain the foregoing online request message through a first detection point and parse the message to obtain an IP address of the request terminal and identification information of the mobile terminal that are carried in the message. In this application embodiment, the identification information is a mobile phone number.
S303: Cache the IP address and the mobile phone number of the request terminal, and correspondence between the IP address and the mobile phone number. It is taken as an example rather than limitation that it may be cached in a form of a table. The specific implementation manner is shown in Table 1.

Table 1

	IP address	Mobile phone number
Request terminal
1	211.200.138.0	13811122111
Request terminal 2	211.200.131.3	13400011000
Request terminal N	211.200.124.0	13633355000

S304: After receiving the foregoing online request message, a WAP gateway replies with an online response message (Accounting-Response) through the foregoing GGSN to the request terminal.
S305: The GGSN receives and forwards a service request message initiated by the foregoing request terminal.
S306: Obtain the foregoing WAP service request message through the first detection point and parse the message to obtain a network address which is of the WAP service to be subscribed and which is carried in the message. In this application embodiment, the network address is a URL address of the WAP service to be subscribed.
S307: Cache the foregoing URL address of the WAP service to be subscribed, and correspondence between the URL address of the WAP service to be subscribed and the IP address which is of the request terminal and which is obtained in S302. It is taken as an example rather than limitation that it may be cached in the form of a table. The specific implementation manner is shown in Table 2.

Table 2

	IP address	URL of the WAP service to be subscribed
Request terminal 1	211.200.138. 0	http://www.ietf.org/rfc/rfc1738.html
Request terminal 2	211.200.131. 3	http://rfc.sunsite.dk/rfc/rfc1721.html
Request terminal N	211.200.124. 0	http://04e1d3d7.linkbucks.com

S308: After receiving the foregoing service request message, the WAP gateway adds user forward information into the service request message and forwards the message. It is taken as an example rather than limitation that the user forward information (the user forward information may be the mobile phone number of the request terminal) may be added through an X-Up-Calling-Line-ID field.
S309: Through a second detection point, obtain the foregoing service request message which is added with the user forward information; and parse the message to obtain the URL address of the WAP service to be subscribed and the mobile phone number of the request terminal.
S310: An apparatus for monitoring a WAP service subscribing process searches for, according to the mobile phone number obtained by the second detection point, the information cached in S303. If the same mobile phone number is found and the IP address which is corresponding to the mobile phone number is found, S311 is performed; otherwise, the foregoing service request message is regarded as an unauthorized message, and alarm information is sent to a system.
S311: The apparatus for monitoring the WAP service subscribing process searches for, according to the information cached in S307, the URL address which is of the WAP service to be subscribed and which is corresponding to the foregoing IP address. If the corresponding URL address of the WAP service to be subscribed is found, S312 is performed; otherwise, the foregoing service request message is regarded as the unauthorized message, and the alarm information is sent to the system.
S312: The apparatus for monitoring the WAP service subscribing process judges whether the URL address which is in a cached message and which is found in S311 is the same as the URL address obtained by the second detection point. If the addresses are the same, the foregoing service request message is regarded as an authorized message. If the addresses are different, the foregoing service request message is regarded as an unauthorized message, and the alarm information is sent to the system.
S313: The GGSN receives and forwards an offline request message (Accounting-Request Stop) which is initiated by the request terminal.
S314: Obtain the foregoing offline request message through the first detection point and parse the message to obtain the IP address and the mobile phone number of the request terminal that are carried in the message, and delete corresponding information in a cache according to the information obtained through parsing. The corresponding information includes the IP address of the request terminal, the mobile phone number of the request terminal, the corresponding URL address of the WAP service to be subscribed, and the correspondence between the IP address and the mobile phone number of the request terminal and between the IP address of the request terminal and the URL address of the WAP service to be subscribed.
S315: After receiving the foregoing offline request message, the WAP gateway replies with an offline response message (Accounting-Response) through the GGSN to the request terminal.

The foregoing alarm information may include the information of the WAP service to be subscribed and/or the information of the request terminal, so that the system can reserve information of an unauthorized service to facilitate obtaining evidence or actively monitoring the unauthorized service. After sending the alarm information, the apparatus for monitoring the WAP service subscribing process may notify the WAP gateway of stopping the WAP service subscription.
In the foregoing first application embodiment of the present invention, the information of the request terminal is obtained through obtaining and parsing a Radius message (for example, the online request message and the offline request message) at the first detection point. The information of the WAP service to be subscribed and the information of the request terminal are obtained through obtaining and parsing an HTTP message and a WSP message (for example, the service request message) at the first detection point. The information obtained by the two detection points are compared to judge whether the service request message at the egress of the WAP gateway is an authorized service request sent by the request terminal, the security of the WAP service subscribing process is effectively improved, and economic losses of a user and an operator are avoided.
In the practical application process, if all WAP services are monitored, a bandwidth burden of the system may be increased. In consideration of both the security and the monitoring efficiency, the apparatus for monitoring the WAP service subscribing process may set identification information of a target WAP service, and only monitor the target WAP service. It is taken as an example rather than limitation that, Ring Back Tone downloading is set to be the target WAP service, and then the apparatus for monitoring the WAP service subscribing process saves an IP address (for example, 218.200.169.*) of the service. Accordingly, in S309 of the foregoing first application embodiment of the present invention, the URL address of a target WAP service to be subscribed and the mobile phone number of the request terminal are obtained.

Embodiment 2

In a second application embodiment provided in the preset invention, a network architecture as shown in FIG. 2 is still taken as an example. Its processing process is shown in FIG. 4, and a specific implementation manner is as follows:
S401: A GGSN receives and forwards an online request message (Accounting-Request Start) which is initiated by a request terminal.
S402: Obtain the foregoing online request message through a first detection point and parse the message to obtain a mobile phone number which is of the request terminal and which is carried in the message.
S403: Cache the mobile phone number of the request terminal.
S404: After receiving the foregoing online request message, a WAP gateway replies with an online response message (Accounting-Response) through the foregoing GGSN to the request terminal.
S405: The GGSN receives and forwards a service request message initiated by the foregoing request terminal.
S406: Obtain the foregoing WAP service request message through the first detection point and parse the message to obtain a network address which is of a WAP service to be subscribed and which is carried in the message. In this application embodiment, the network address is a URL address of the WAP service to be subscribed.
S407: Cache the URL address of the foregoing WAP service to be subscribed, and correspondence between the URL address of the WAP service to be subscribed and the mobile phone number which is of the request terminal and which is obtained in the S402. It is taken as an example rather than limitation that it may be cached in a form of a table. The specific implementation manner is shown in Table 3.

Table 3

	Mobile phone number	URL of the WAP service to be subscribed
Request terminal 1	13811122111	http://www.ietf.org/rfc/rfc1738.html
Request terminal 2	13400011000	http://rfc.sunsite.dk/rfc/rfc1721.html
Request terminal N	13633355000	http://04e1d3d7.linkbucks.com

S408: After receiving the foregoing service request message, the WAP gateway adds user forward information into the service request message and forwards the message. It is taken as an example rather than limitation that, the user forward information (the user forward information may be the mobile phone number of the request terminal) may be added through an X-Up-Calling-Line-ID field.
S409: Through a second detection point, obtain the foregoing service request message which is added with the user forward information; and parse the message to obtain the URL address of the WAP service to be subscribed and the mobile phone number of the request terminal.
S410: An apparatus for monitoring a WAP service subscribing process searches for, according to the mobile phone number obtained by the second detection point, the information cached in S407. If the same mobile phone number is found and the URL address which is corresponding to the mobile phone number is found, S411 is performed; otherwise, the foregoing service request message is regarded as an unauthorized message, and alarm information is sent to a system.
S411: The apparatus for monitoring the WAP service subscribing process judges whether the URL address which is in the cached message and which is found in S410 is the same as the URL address obtained by the second detection point. If the addresses are the same, the foregoing service request message is regarded as an authorized message. If the addresses are different, the foregoing service request message is regarded as the unauthorized message, and the alarm information is sent to the system.
S412: The GGSN receives and forwards an offline request (Accounting-Request Stop) which is initiated by the request terminal.
S413: Obtain the foregoing offline request message through the first detection point, parse the message to obtain the mobile phone number which is of the request terminal and which is carried in the message, and delete corresponding information in a cache according to the information obtained through parsing. The corresponding information includes the mobile phone number of the request terminal, the corresponding URL address of the WAP service to be subscribed, and the identification information of the request terminal and the URL address of the WAP service to be subscribed.
S414: After receiving the foregoing offline request message, the WAP gateway replies with an offline response message (Accounting-Response) through the GGSN to the request terminal.

It can be seen that, the second application embodiment of the present invention further simplifies a monitoring and analysis process, thereby improving monitoring efficiency.
All or a part of the steps of the foregoing method embodiments may be implemented by a program instructing relevant hardware. The foregoing program may be stored in a computer readable storage medium. When the program runs, the steps of the foregoing method embodiments are performed. The foregoing storage medium may include any medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or a compact disk.
The embodiment of the present invention further provides an apparatus for monitoring a WAP service subscribing process. Its structure is shown in FIG. 5, and a specific implementation structure includes:

a first monitoring module 501, set at an egress of an access network gateway, and configured to obtain information of a service to be subscribed and information of a corresponding request terminal;
a caching module 502, configured to cache the information obtained by the first monitoring module 501;
a second monitoring module 503, set at an egress of a wireless application protocol WAP gateway which communicates with the foregoing access network gateway, and configured to obtain information of a service to be subscribed and information of a corresponding request terminal;
a service judging module 504, configured to judge whether the information cached by the caching module 502 includes the information of the service to be subscribed and the information of the corresponding request terminal that are obtained by the second monitoring module 503; and
a service processing module 505, configured to continue a WAP service subscribing procedure when a judgment result of the service judging module 504 is yes (that is, the cached information includes the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway), and send alarm information if the judgment result of the service judging module is no (that is, the cached information at least does not include one of the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway).

The embodiment of the present invention provides the apparatus, and information obtained from the egress of the WAP gateway and information obtained from the egress of the access network gateway are compared to judge whether WAP service subscription is authorized, so as to effectively prevent an act of unauthorized subscription to a WAP service.
The foregoing second monitoring module 503 may be specifically configured to obtain a service request message of the request terminal, and parse the service request message to obtain the information of the service to be subscribed and the information of the corresponding request terminal that are in the service request message. The information of the service to be subscribed includes a network address of the service to be subscribed, and the information of the request terminal includes identification information of the request terminal.
In the embodiment of the present invention, the first monitoring module 501 has two working manners according to a difference in the first monitoring module 501 obtaining the information.
In a first manner, the first monitoring module 501 is configured to obtain an online request message of the request terminal and parse the online message to obtain the information which is of the request terminal and which is carried in the online request message. The information of the request terminal includes an IP address of the foregoing request terminal and identification information of the foregoing request terminal. The first monitoring module 501 is further configured to obtain the service request message of the request terminal and parse the service request message to obtain the information which is of the service to be subscribed and which is carried in the service request message. The information of the service to be subscribed includes the network address of the service to be subscribed. Accordingly, the caching module 502 is specifically configured to cache the IP address of the foregoing request terminal, the identification information of the request terminal, and correspondence between the IP address of the request terminal and the identification information of the request terminal, and further cache the network address of the service to be subscribed and correspondence between the IP address of the request terminal and the network address of the service to be subscribed. In order to improve monitoring efficiency, only a target WAP service that is set may be monitored, and then the second monitoring module 503 is specifically configured to obtain, according to preset identification information of a WAP service to be monitored, the network address of the service to be subscribed and the identification information of the request terminal that are carried in the service request message for the WAP service to be monitored. After the service judging module 504 performs judgment, the first monitoring module 501 is further configured to obtain an offline request message of the request terminal and obtain the IP address of the request terminal and the identification information of the request terminal that are carried in the offline request message. The caching module 502 is further configured to delete, according to the IP address of the request terminal and the identification information of the request terminal, the IP address of the corresponding request terminal, the identification information of the request terminal, and the correspondence between the IP address of the request terminal and the identification information of the request terminal, and delete the network address of the service to be subscribed and the correspondence between the IP address of the corresponding request terminal and the network address of the service to be subscribed. Accordingly, the foregoing service judging module 504 is specifically configured to judge whether the cached information includes the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway; if yes, judge whether the cached information includes the corresponding IP address and the correspondence between the identification information and the IP address of the request terminal; if yes, judge whether the cached information includes the corresponding network address and the correspondence between the IP address of the request terminal and the network address of the service to be subscribed; and if yes, judge whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway. The service processing module 505 is specifically configured to continue the WAP service subscribing procedure when all of the judgment results of the service judging module 504 are yes, and otherwise, send the alarm information.
In a second manner, the first monitoring module 501 is configured to obtain an online request message of the request terminal and parse the online message to obtain information which is of the foregoing request terminal and which is carried in the online message. The information of the request terminal includes identification information of the request terminal. The first monitoring module 501 is is further configured to obtain the service request message of the request terminal and parse the service request message to obtain information which is of the service to be subscribed and which is carried in the service request message. The information of the service to be subscribed includes the network address of the service to be subscribed. Accordingly, the caching module 402 is specifically configured to cache the identification information of the foregoing request terminal, and further cache the network address of the service to be subscribed and correspondence between the identification information of the request terminal and the network address of the service to be subscribed. In order to improve monitoring efficiency, only a target WAP service that is set may be monitored, and then the second monitoring module 503 is specifically configured to obtain, according to preset identification information of a WAP service to be monitored, the network address of the service to be subscribed and the identification information of the request terminal that are carried in the service request message for the WAP service to be monitored. After the service judging module 504 performs judgment, the first monitoring module 501 is further configured to obtain an offline request message of the request terminal and obtain the identification information which is of the request terminal and which is carried in the offline request message. The caching module 502 is further configured to delete, according to the identification information of the request terminal, the corresponding identification information of the request terminal, and delete the network address of the service to be subscribed and the correspondence between the corresponding identification information of the request terminal and the network address of the service to be subscribed. Accordingly, the foregoing service judging module 504 is specifically configured to judge whether the cached information includes the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway; if yes, judge whether the cached information includes the corresponding network address and the correspondence between the identification information of the request terminal and the network address of the service to be subscribed; if yes, judge whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway. The service processing module 505 is specifically configured to continue the WAP service subscribing procedure when all of the judgment results of the service judging module 504 are yes, and otherwise, send the alarm information.
In the apparatus provided in the embodiment of the present invention, the service judging module 504, the service processing module 505, and the caching module 502 may be set on the WAP gateway, and may also be set as separate monitoring apparatuses in the network architecture as shown in FIG. 2.
The foregoing descriptions are merely exemplary embodiments of the present invention, but are not intended to limit the protection scope of the present invention. Any modification and replacement that can be easily thought of by persons skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A method for monitoring a WAP service subscribing process, comprising:
caching information of a service to be subscribed and information of a corresponding request terminal that are obtained from an egress of an access network gateway;

obtaining information of a service to be subscribed and information of a corresponding request terminal from an egress of a wireless application protocol WAP gateway which communicates with the access network gateway;

judging whether the cached information of the service to be subscribed and information of the corresponding request terminal that are obtained from the egress of the access network gateway comprise the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway;

if a judgment result is yes, continuing a WAP service subscribing procedure; and

if the judgment result is no, sending alarm information.
The method according to claim 1, wherein the obtaining the information of the service to be subscribed and the information of the corresponding request terminal from the egress of the WAP gateway comprises:
obtaining a service request message of the request terminal from the egress of the WAP gateway, and obtaining the information of the service to be subscribed and the information of the corresponding request terminal in the service request message, wherein the information of the service to be subscribed comprises a network address of the service to be subscribed, and the information of the request terminal comprises identification information of the request terminal.
The method according to claim 2, wherein the caching the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the access network gateway comprises:
obtaining an online request message of the request terminal from the egress of the access network gateway, obtaining and caching the information which is of the request terminal and which is carried in the online message, wherein the information of the request terminal comprises an IP address of the request terminal and the identification information of the request terminal, and further caching correspondence between the IP address of the request terminal and the identification information of the request terminal; and

obtaining the service request message of the request terminal from the egress of the access network gateway, obtaining and caching the information which is of the service to be subscribed and which is carried in the service request message, wherein the information of the service to be subscribed comprises the network address of the service to subscribed, and further caching correspondence between the IP address of the request terminal and the network address of the service to be subscribed.
The method according to claim 3, wherein the judging whether cached information comprises the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway comprises:
judging whether the cached information comprises the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway;

if yes, judging whether the cached information comprises a corresponding IP address and the correspondence between the identification information and the IP address of the request terminal;

if yes, judging whether the cached information comprises a corresponding network address and the correspondence between the IP address of the request terminal and the network address of the service to be subscribed; and

if yes, judging whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway.
The method according to claim 2, wherein the caching the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the access network gateway comprises:
obtaining an online request message of the request terminal from the egress of the access network gateway, and obtaining and caching the information which is of the request terminal and which is carried in the online message, wherein the information of the request terminal comprises the identification information of the request terminal; and

obtaining the service request message of the request terminal from the egress of the access network gateway, obtaining and caching the information which is of the service to be subscribed and which is carried in the service request message, wherein the information of the service to be subscribed comprises the network address of the service to be subscribed, and further caching correspondence between the identification information of the request terminal and the network address of the service to be subscribed.
The method according to claim 5, wherein the judging whether cached information comprises the information of the service to be subscribed and the information of the corresponding request terminal that are obtained from the egress of the WAP gateway comprises:
judging whether the cached information comprises the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway;

if yes, judging whether the cached information comprises a corresponding network address and the correspondence between the identification information of the request terminal and the network address of the service to be subscribed; and

if yes, judging whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the of the WAP gateway.
The method according to any one of claims 1 to 6, wherein according to preset identification information of a WAP service to be monitored, a subscribing process of the WAP service to be monitored is monitored.
The method according to any one of claims 3 to 6, wherein after judgment, the method further comprises:
obtaining an offline request message of the request terminal from the egress of the access network gateway, and obtaining the identification information which is of the request terminal and which is carried in the offline request message; and

deleting corresponding information in a cache according to the identification information of the request terminal.
The method according to any one of claims 1 to 6, wherein the alarm information comprises the information of the service to be subscribed and/or the information of the corresponding request terminal.
An apparatus for monitoring a WAP service subscribing process, comprising:
a first monitoring module, set at an egress of an access network gateway, and configured to obtain information of a service to be subscribed and information of a corresponding request terminal;

a caching module, configured to cache the information obtained by the first monitoring module;

a second monitoring module, set at an egress of a wireless application protocol WAP gateway which communicates with the access network gateway, and configured to obtain information of the service to be subscribed and information of the corresponding request terminal;

a service judging module, configured to judge whether the information cached by the caching module comprises the information of the service to be subscribed and the information of the corresponding request terminal that are obtained by the second monitoring module; and

a service processing module, configured to continue a WAP service subscribing procedure when a judgment result of the service judging module is yes, and send alarm information when the judgment result of the service judging module is no.
The apparatus according to claim 10, wherein the second monitoring module is specifically configured to obtain a service request message of the request terminal, and obtain the information of the service to be subscribed and the information of the corresponding request terminal in the service request message, wherein the information of the service to be subscribed comprises a network address of the service to be subscribed, and the information of the request terminal comprises identification information of the request terminal.
The apparatus according to claim 11, wherein the first monitoring module is specifically configured to obtain an online request message of the request terminal, and obtain the information which is of the request terminal and which is carried in the online message, wherein the information of the request terminal comprises an IP address of the request terminal and the identification information of the request terminal, and further configured to obtain the service request message of the request terminal, and obtain the information which is of the service to be subscribed and which is carried in the service request message, wherein the information of the service to be subscribed comprises the network address of the service to be subscribed; and the caching module is specifically configured to cache the IP address of the request terminal, the identification information of the request terminal, and correspondence between the IP address of the request terminal and the identification information of the request terminal, and further cache the network address of the service to be subscribed and correspondence between the IP address of the request terminal and the network address of the service to be subscribed.
The apparatus according to claim 12, wherein the service judging module is specifically configured to judge whether cached information comprises the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway; if yes, judge whether the cached information comprises a corresponding IP address and the correspondence between the identification information and the IP address of the request terminal; if yes, judge whether the cached information comprises a corresponding network address and the correspondence between the IP address of the request terminal and the network address of the service to be subscribed; and if yes, judge whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway; and
the service processing module is specifically configured to continue the WAP service subscribing procedure when all judgment results of the service judging module are yes, and otherwise, send the alarm information.
The apparatus according to claim 11, wherein the first monitoring module is specifically configured to obtain an online request message of the request terminal, and obtain the information which is of the request terminal and which is carried in the online message, wherein the information of the request terminal comprises the identification information of the request terminal, and further configured to obtain the service request message of the request terminal, and obtain the information which is of the service to be subscribed and which is carried in the service request message, wherein the information of the service to be subscribed comprises the network address of the service to be subscribed; and the caching module is specifically configured to cache the identification information of the request terminal, and further cache the network address of the service to be subscribed and correspondence between the identification information of the request terminal and the network address of the service to be subscribed.
The apparatus according to claim 14, wherein the service judging module is specifically configured to judge whether the cached information comprises the identification information which is of the request terminal and which is obtained from the egress of the WAP gateway; if yes, judge whether the cached information comprises a corresponding network address and the correspondence between the identification information of the request terminal and the network address of the service to be subscribed; if yes, judge whether the cached network address is the same as the network address which is of the service to be subscribed and which is obtained from the egress of the WAP gateway; and
the service processing module is specifically configured to continue the WAP service subscribing procedure when all judgment results of the service judging module are yes, and otherwise, send the alarm information.
The apparatus according to any one of claims 10 to 15, wherein the apparatus is specifically configured to, according to preset identification information of a WAP service to be monitored, monitor a subscribing process of the WAP service to be monitored.